CN101501749B - 有源矩阵有机电光装置 - Google Patents

有源矩阵有机电光装置 Download PDF

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CN101501749B
CN101501749B CN2007800299242A CN200780029924A CN101501749B CN 101501749 B CN101501749 B CN 101501749B CN 2007800299242 A CN2007800299242 A CN 2007800299242A CN 200780029924 A CN200780029924 A CN 200780029924A CN 101501749 B CN101501749 B CN 101501749B
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俄恩·史密斯
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Cambridge Display Technology Ltd
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Abstract

本发明总的来说涉及有源矩阵有机电光装置且涉及有关的显示器驱动方法。在实施例中，本发明涉及包括可以用于显示驱动或者其他功能的附加电路的顶部发光OLED(有机发光二极管)显示器。一种有源矩阵有机电光装置，该装置具有多个像素且包括承载每个所述像素的像素接口电路和所述像素接口电路之上的有机材料的衬底，其中，配置所述装置以使得在所述装置的至少一部分区域之上所述像素接口电路关于所述像素交错，以使得至少一个所述像素下的区域不完全由所述像素接口电路占据，且其中在由所述像素接口电路不完全占据的所述区域中制造用于所述装置的附加电路。

Description

有源矩阵有机电光装置
技术领域
本发明总的来说涉及有源矩阵有机电光装置。在实施例中，本发明涉及包括可以用于显示驱动或者其他功能的附加电路的顶部发光OLED(有机发光二极管)显示器，并涉及有关的显示驱动方法。 
背景技术
有机发光二极管显示器 
使用OLED制造的显示器提供了与LCD及其他平板技术相比的多个优点。它们亮、色彩丰富、切换快速(相比LCD)，提供宽的视角且易于且低成本地在各种衬底上制造。在取决于采用的材料的颜色范围中，可以使用包括聚合物，小分子和树枝状结晶(dendrimer)的材料制造有机(这里包括有机金属)LED。在WO 90/13148，WO 95/06400和WO 99/48160中描述了基于聚合物的有机LED的实例；在WO 99/21935和WO 02/067343中描述了基于树枝状结晶的材料的例子；且在US 4,539,507中描述了所谓的基于小分子的装置的实例。 
典型的OLED装置包括两层有机材料，其中之一是例如发光聚合物(LEP)、低聚物或者发光低分子量材料的发光材料，且另一层是例如聚噻吩衍生物或者聚苯胺衍生物的空穴传输材料的层。 
可以将有机LED以像素的矩阵的方式淀积在衬底上以形成单色或者多色的像素化(pixellate)的显示器。可以使用发出红色、绿色和蓝色像素的组构造多色显示器。所谓的有源矩阵(AM)显示器具有与每个像素相关的存储元件，典型地是存储电容器和晶体管，而无源矩阵显示器没有这种存储元件，且替代地，被反复地扫描以给出稳定图像的效果。能够在WO 99/42983和EP 0,717,446A中分别找到聚合物和小分子有源矩阵显示驱动器的实例。 
显示器可以是底部发光或者顶部发光的。在底部发光显示器中，通过在其上制造有源矩阵电路的衬底发射光；在顶部发光显示器中，向着显示器的正面发射光，且光不必通过其中制造有源矩阵电路的显示器的层。 
图1a和1b分别示出了底部发光和顶部发光OLED显示器的示意图。在图1a和1b中，衬底10承载了用于每个像素的有源矩阵驱动电路12，在该有源矩阵驱动电路12上设置OLED像素14。从图1a可以看到，概括地讲，在底部发光OLED显示器(或者在LCD显示器)中，显示器像素位于没有被有源矩阵电子设备占据的区域中。但是，在顶部发光显示器中，情况不是这样。 
顶部发光OLED显示器不如底部发光显示器普遍，这是由于典型地，上电极包括阴极且必须是至少部分透明的，且具有足够的导电率并优选地提供在下面的有机层的封装度。尽管如此，已经描述了大量顶部发光结构，包括在申请人公布的PCT申请WO 2005/071771中(在这里完全包括并整体作为参考)，其描述了并入光学干涉结构中以增强从OLED像素发出的光量的阴极。 
顶部发光OLED结构的实例 
图1c示出了穿过顶部发光有源矩阵OLED显示器100的一部分的垂直截面图(为了说明的目的某种程度上进行了简化)。 
在该实例中，显示器具有支撑其中形成有驱动电路(如图所示，包括通路)的多个多晶硅和/或金属化和绝缘层104的玻璃或塑料衬底102。该组层的最上层包括其上淀积有阳极层106的绝缘和钝化氧化层(SiO2)。该阳极可以包括现有的金属层，例如铂层。由于显示器是顶部发光的，因此也可以采用不透明衬底，例如钢。 
例如，通过旋涂和随后的图案化，或通过使用基于喷墨的淀积方法的选择性淀积(参见，例如，EP 0880303或者WO 2005/076386)，OLED材料108的一个或多个层被淀积在阳极106之上，。在基于聚合物的OLED的情况下，层108包括空穴传输层108a和发光聚合物 (LEP)电致发光层108b。电致发光层可以包括例如PPV(聚(p-苯乙炔))，以及空穴传输层可以包括，例如，PEDOT：PSS(聚苯乙烯-磺酸盐掺杂聚乙烯-二氧噻吩，polystyrene-sulphonate-doped polyethylene-dioxythiophene)，空穴传输层帮助匹配阳极层和电致发光层的空穴能级。 
多层阴极110位于OLED材料108之上，且在顶部发光装置中，该多层阴极110在该装置被设计发光的波长处至少是部分透明的。对于聚合物LED，阴极优选地具有小于3.5eV的功函数，且可以包括具有低功函数的第一层，例如诸如钙，镁或者钡的金属，以及可以包括与LEP层108b相邻的第二层，提供有效率的电子注入，例如，其是氟化钡或者另一金属氟化物或者氧化物。阴极110的顶层(也就是离LEP 108b最远的层)可以包括诸如金或银的高导电金属的薄膜。具有小于50nm，更优选地小于20nm的厚度的金属层已经被认为是足够光学透明的，尽管优选地将该薄层的电阻保持为低，优选地小于100ohms/square，更优选地小于30ohms/square。该阴极层可以用于形成阴极线，该阴极线能够在装置的侧面被引出以进行接触。在一些配置中，阳极，OLED材料，和阴极层可以由隔挡物(或者壁)分开，例如隔挡物112，例如，其是由正性或者负性光致抗蚀剂材料以与衬底的平面大约15°的角度形成的(在图1中为便于说明问题起见示出其更陡峭)。 
本发明人认识到顶部发光OLED结构促进附加功能性的集成。 
发明内容
因此，根据本发明的第一方面，提供了一种有源矩阵有机电光装置，该装置具有多个像素且包括衬底，所述衬底承载用于每个所述像素的像素接口电路和所述像素接口电路之上的有机材料，其中，配置所述装置以使得在所述装置的至少一部分区域之上，所述像素接口电路相对于所述像素交错，以使得至少其中一个所述像素下的区域不完全由所述像素接口电路占据，且其中在由所述像素接口电路不完全占 据的所述区域中制造用于所述装置的附加电路。 
本发明人认识到，在用于顶部发光显示器的一般类型的结构中，有源矩阵驱动电路能够被空间地偏移以为附加电路腾出空间。利用顶部发光显示器的像素和它的驱动电路的确切的共同定位的减少的要求，该附加的、非像素对准的电路可用于添加功能性和/或改进OLED显示器的性能。由此该附加功能性可以包括，例如，减少编程时间的信号升压或者再生，性能采样电路，诸如校准电路或者老化检测补偿电路，光检测电路，或者用于实现触觉传感器以提供触敏式显示器的电路。由此在一些优选实施例中，该附加电路包括包含至少一个半导体装置的有源电路。 
在一些优选实施例中，该有机电光装置包括顶部发光有源矩阵OLED显示器，像素接口电路之上的有机材料包括OLED材料。在这种实施例中，接口电路优选地包括像素驱动电路。然而，概念的应用不局限于顶部发光有源矩阵OLED结构，而可以由其他类型的顶部发光电子荧光结构来应用，以及在其他类似结构的环境中采用，例如包括(但不限于)光伏电压(PV)装置结构，和传感器结构。 
优选地，该接口驱动电路关于像素交错以使得相邻像素对下的区域不完全被该电路占据。在实施例中，在整个显示器的区域每隔规则间隔设置由接口或者驱动电路不完全占据的区域，例如，其每一个与一组像素相关。附加电路可能包括共享接口驱动电路，例如，其提供驱动信号给上述像素组。例如，可以沿着显示器的行和/或列的数据线间隔地设置这种共享驱动电路。将认识到在实施例中，能够实现其而不导致显示器的外观上任意不合需要的产物。 
该共享驱动电路可以包括信号再生电路。具体来说，有源矩阵驱动电路或者OLED显示器像素通常是电流控制的(由于这促进了从显示器获得大体上线性的响应)，且用于像素的有源矩阵驱动电路可因此包括电流驱动电路。更具体地说，可以由行或列数据线上的电流对该电流驱动电路进行编程，且除非有源矩阵像素本身集成了电流镜或者其他电流定标电路或者结果，否则该编程电流可至少以幅度的量级 对应于OLED电流。然而，该OLED电流能够是小的，例如1μA的量级。在其他结构中(以后描述的)，部分地由通过与该像素相关的光电二极管的电流(为补偿老化)来定义OLED像素电流，且在这种情况下由于光电二极管的光子效率可能仅是1％的量级，因此该编程电流可以仅是10nA的量级。然而，具有非常小的电流的问题是数据线电容和/或泄漏电流能够对驱动像素的编程电流具有显著的影响。因此，在一些优选实施例中，共享的驱动电路包括用于提供小于单个单位的驱动信号增益的电路，具体来说衰减或者向下缩放电流驱动信号。例如，该共享驱动电路可以包括去放大电流镜。以这种方式，可以在像素数据线上设置相对大的电流驱动信号，在物理地靠近驱动像素(优选地)的位置向下缩放驱动信号。 
在一些优选实施例中，附加电路包括选择或者使能电路，具体来说当驱动与附加电路关联的一组像素中的像素时选择或者使能附加电路(例如共享驱动电路)。在一些优选实施例中，附加电路还包括存储元件，例如在共享驱动电路的情况下存储用于驱动与附加(共享驱动)电路关联的一组像素中的像素的驱动信号。这促进了如以下描述的驱动显示器的方法。 
额外地或可选地，该附加电路可包括光或者触觉传感器，例如，用于提供触敏式显示器。 
在本发明的有关方面中，提供了一种驱动像素化的显示器的方法，该显示器具有多个有源矩阵像素，每个有源矩阵像素具有用于将显示数据写到像素的数据线，共享所述数据线用于驱动所述显示器的多个像素，通过分配给组的所述共享数据线来驱动像素，每个组包括多个像素且具有各个组数据驱动电路，该组数据驱动电路耦合到所述共享数据线和该组的每个像素，用于从所述共享数据线接收像素驱动数据并用于响应于所述像素驱动数据来驱动该组的所选像素，该方法包括：依次驱动每个所述组的第一像素；以及随后依次驱动每个所述组的第二像素。 
优选地，该方法包括驱动每个组的每个像素，依次驱动每个组， 以及对于每个组，依次驱动每个组的每个像素。以这种方式，可以寻址与共享数据线相关的所有组中的所有像素。 
在一些优选实施例中，共享数据线包括显示器的行或者列数据线。在彩色显示器实施例中，像素可以包括彩色子像素，具体来说相同颜色的彩色子像素，例如红色、绿色或蓝色。 
优选地，该驱动方法包括存储用于每个组的像素的驱动信号，以使得可以驱动在一组中的像素的同时选择另一组并写入像素数据(和存储)。由此，该方法可以包括写入到第一组，更具体地说写入到该组内的像素，并随后该第一组(或者该组内的像素)等待，直到写入其它一个或多个组。以这种方式，在具有例如n个组的方法的实施例中，每个像素具有以因数n扩展的编程时间。 
如上所述，在一些优选实施例中，像素的驱动包括使用组驱动电路在共享数据线上缓存驱动信号，和以缓存的驱动信号驱动该像素。由于更长的写周期编程时间减少了数据线电容的影响，因此在随着显示器尺寸增加时这是特别有益的。在实施例中，该缓存包括减少到有源矩阵像素驱动电路的电流驱动信号的电平，例如，使用电流镜电路以去放大电流驱动信号的电平。以这种方式，数据线电流可以显著地更大，例如，大于到有源矩阵像素驱动电路的电流驱动10，50或100的因数。结合使用所述10，50或者100组像素，可以实现102到104的因数的改进。 
优选地，该组数据驱动电路的位置和由该电路驱动的组中的像素相邻。优选地，如上所述，用于组的像素的有源矩阵驱动电路被移位，从而允许在用于该组的像素的有源矩阵电路的旁边将该组数据驱动电路包括在显示器中。 
在该方法的一些优选实施例中，该显示器包括平板显示器(通常不在结晶硅上制造，通常对角线大于2cm或者5cm；这与芯片型显示器相反)。优选地，该显示器包括顶部发光有源矩阵OLED显示器。 
在本发明的另一有关方面中，提供了一种像素化的显示器，该显示器具有多个有源矩阵像素，每个有源矩阵像素具有用于将显示数据 写到像素的数据线，共享所述数据线以用于驱动所述显示器的多个像素，通过分配给组的所述共享数据线来驱动像素，每个组包括多个像素且具有各个组数据驱动电路，该组数据驱动电路耦合到所述共享数据线和该组的每个像素，用于从所述共享数据线接收像素驱动数据并用于响应于所述像素驱动数据来驱动该组的所选像素。 
附图说明
现在将参考附图仅通过实例的方式进一步描述本发明的这些及其他方面，在附图中： 
图1a到1c分别示出了底部发光OLED显示器的示意图，顶部发光OLED显示器的示意图，和穿过顶部发光有源矩阵OLED显示器的一部分的垂直截面； 
图2示出了根据本发明的顶部发光有源矩阵OLED显示器的实施例； 
图3a到3e示出了有源矩阵像素驱动电路的实例； 
图4a到4c分别示出了用于图2的顶部发光OLED显示器的驱动信号缓存电路体系结构，用于图4a的体系结构的驱动信号时序图，和集成有存储元件的用于图4a的体系结构的可选择的去放大电流镜电路；和 
图5a到5c分别示出了光传感器电路的第一实例，光传感器电路的第二实例，和触觉传感器电路的实例，所有上述内容用于如图2所示的有源矩阵顶部发光OLED显示器的实施例。 
具体实施方式
参考图2，其示出了根据本发明的顶部发光有源矩阵OLED显示器的实施例，其中由相似的参考数字指示和图1b中相似的元件。可以看出在图2的配置中，有源矩阵像素驱动电路相对于像素交错，以留下由像素驱动电路不完全占据且代替地由像素驱动电路之间的附加电路占据的区域16。 
在图2中，示意性地示出了有源矩阵像素驱动电路和附加电路，如框图所示，尽管实际上也可以在类似于图1c的层104的连续层的一部分中制造该电路。在单色显示器中，典型的像素间距是300μm的量级，且在RGB彩色显示(如示出的)是50μm到100μm的量级。如图所示，像素驱动电路面积小于像素面积，这提供了一些多余的空间，且通过相对于像素而移动像素驱动电路，在例如5个像素到20个像素的距离上进行驱动(例如大约10个像素)，如图所示，可以为附加电路创建足够的多余空间。像素之间的空间可以用于光电二极管传感器。当驱动电路包括有机薄膜晶体管(TFT)或者以LTPS(低温聚硅)制造的晶体管时，这些通常是P型装置；当以非晶硅制造有源矩阵电路时，TFT通常是N型。 
图2的附加电路能够具有许多不同功能，以下更加详细地描述其中的一些实例。 
第一实例涉及电流编程的像素电路。这里，由于信号非常小且典型地存在到数据线的多个(例如1024个)连接，因此电流泄露可能会引起问题。由此，作为可选方案，数据线可以被路由至较小数目的(例如32个)信号再生电路，该信号再生电路将数据信号再生到像素电路的子集(例如，16个电路或者，32个电路)。这促进了进行大量像素电路(32×32＝1024)的寻址，并大大降低了电流泄露的问题。在将较大的电流分配给更多再生电路(例如，128个电路)的情况下，该关系还可以是非对称的。随后可以采用去放大电流镜以将信号分配给较小数目的(例如8个)像素电路。 
现在描述第二相关实例：一些提出的像素驱动电路具有非常复杂的设计，但是典型地，大多数部件仅用在编程期间。由此可以在多个像素之间共享像素驱动电路的编程部分。然而，将认识到，例如，由于匹配的要求，通常将该共享电路定位在显示面板的边缘是不切实际的。由此该电路可以有益地实现为像素电路之间的附加电路，具体来说在本地布置的少量像素电路之间共享。可以在整个显示器间隔地分配这种共享电路。 
在第三实例中附加电路包括光传感电路。其可用于检测来自发光像素的、例如由手指或指示笔向后朝着显示面板反射的光，由此增加触觉传感器的功能性。额外地或可选地，这种光传感器电路还可以用作用于背景亮度的检测器，例如，使得能够控制该显示器以在适合于环境的亮度工作。额外地或可选地，这种可以采用这种光传感电路来校准从OLED像素输出的光，更具体地说是来自彩色OLED显示器的一个或多个不同颜色的像素的光，例如，用于补偿老化。 
用于有源矩阵显示器的数据驱动体系结构 
图3a示出了电压控制的OLED有源矩阵像素电路150的实例。对于显示器的每个像素提供电路150，且地152，Vss 154，行选择124和列数据126总线条被提供互连各像素。由此每个像素具有电源和地连接，且像素的每个行具有公共的行选择线124且像素的每个列具有公用数据线126。 
每个像素具有和驱动晶体管158串联连接在地和电源线152和154之间的OLED 152。驱动晶体管158的栅极连接159耦合到存储电容器120，且控制晶体管122在行选择线124的控制下将栅极159耦合到列数据线126。晶体管122是薄膜场效应晶体管(FET)开关，其在激活行选择线124时将列数据线126连接到栅极159和电容器120。由此当开关122导通时，能够将列数据线126上的电压存储在电容器120上。由于到驱动晶体管158的栅极连接以及开关晶体管122处于“断开状态”的相对高的阻抗，因此在电容器上将该电压至少保持一个帧刷新周期。 
驱动晶体管158典型地是FET晶体管且根据晶体管的栅极电压小于阈值电压而传递(漏极-源极)电流。由此在栅极节点159的电压控制通过OLED 152的电流且由此控制OLED的亮度。 
图3a的电压控制的电路具有多个缺点，具体来说，这是由于OLED发光非线性地取决于施加的电压，且由于从OLED输出的光与其传递的电流成比例，因此电流控制是优选的。图3b(其中和图3a 类似的元件由类似的参考数字指示)示出了图3a的电路采用电流控制的变型。更具体地，由电流发生器166设置的(列)数据线上的电流对通过薄膜晶体管(TFT)160的电流“编程”，由于当晶体管122a导通(匹配)时，晶体管160和158形成电流镜，因此该通过薄膜晶体管(TFT)160的电流由此设定了通过OLED的电流。图3c示出了进一步的变型，其中TFT 160由光电二极管162代替，以使得数据线中的电流(当选择像素驱动电路时)通过设置通过该光电二极管的电流而对从OLED输出的光进行编程。 
图3d来自我们的申请WO 03/038790，示出了电流控制的像素驱动电路的另一个例子。在该电路中，使用电流发生器166(例如基准灌电流，current sink)设置用于OLED驱动晶体管158的漏极-源极电流并且存储该漏极-源极电流所需的驱动晶体管栅极电压，从而设置通过OLED 152的电流。由此，由流入基准灌电流166的电流ICO1确定OLED 152的亮度，该电流优选地是依照被寻址的像素的期望而可调节和设置的。另外，另一开关晶体管164连接在驱动晶体管158和OLED 152之间。总的来说，对于每个列数据线设置一个灌电流166。图3e示出了图3d的电路的变型。 
由电流驱动有源矩阵像素电路共享的问题在于，通常情况下，像素“编程”电流是小的泄露和/或数据线电容值可能起支配作用，特别是在大的显示器中。一个解决方案是在每个像素驱动电路中集成去放大电流镜，但是这占据了空间且可能不能提供优于电容值的足够的益处。 
图4a示出了其中沿着显示数据线402每隔一定间隔(例如每十个像素)包括像素组缓存器400的OLED显示器体系结构图。该组缓存器可以被作为图2所示的附加电路16物理地集成在显示器中。每个组缓存器400优选地提供电流去放大，例如通过因数10，以有效地提供数据线电容值的影响的以10为因数的减小。每组缓存器400驱动一组像素驱动电路404，且因此优选地，每组缓存器包括选择线以使得其可以单独地或同时被选为与其关联的组的像素。 
在一些优选实施例中，每组缓存电路400还包括在显示数据线402上的诸如电容器的存储元件，以使得能够选择电路，且电路将存储值，具体来说存储用于对像素驱动电路进行编程的电流值。这允许增加每个像素驱动电路404的编程时间，由此进一步减小数据线电容值的影响。例如，当沿着数据线的像素被分为10组时，能够实现像素“编程”时间以10为因数的增加，在该实例中提供噪声源和电容值的大约一百倍的总增益。 
图4b示出了沿着数据线的像素的编程的时序，示出怎样增加像素的编程时间。在图4b的实例中，存在3组像素，每组具有3个像素。对应于图4b的Y轴上的标签地线性地标记沿着数据线的像素。以圆形指示其中写入像素的顺序；在图4b中以水平条示出显示器的行编号。由此可以看出，由于组缓存器400集成了存储元件，因此可写入第一组缓存器且保持数据(同时写入组缓存器2和3)，直到其再一次来到将数据写入组1像素的时间。以这种方式，由于在该实例中存在3组像素，每个像素的编程时间以3为因数扩展。如图所示，在第一时间间隔中写入缓存，且在随后的时间间隔中对关联的像素进行编程。做为选择地，可以同时地写入像素和与其关联的缓存器。在优选实施例中，根据图4b所示的时序图驱动图4a所示的缓存和像素选择线，例如通过控制器(未示出)，以使得例如在图4b的像素1条所示的时间周期期间使像素1选择线被激活。 
图4c示出了选择线、存储元件和去放大电流镜电路的实例，可以采用该实例以实现组缓存器400。如所示的，通过控制电流镜的两个晶体管的相对尺寸来在图4c的电路中实现去放大。 
参考图5a到5c，其示出了可以被包括在图2所示的类型的显示器中的附加电路的另外的实例。图5a示出了由选择线选择光电二极管，其在关联的数据线上提供光传感信号。图5b示出了该电路的变型，在该变型中平行于光电二极管地包括电容器。在工作中，在图5b的电路中，可以将电压写到电容器和光电二极管上，且这随即可以在以后的时间点被读取以确定电压的变化，该电压的变化取决于由于光电二 极管的电容器放电的程度，且因此取决于由光电二极管接收的光(积分)。 
图5c示出了其中TFT的源极/漏极之一连接到显示器的阴极线(比较图1c)的触觉传感器电路的简单的实例，其中可以看出阴极向着显示器的正面。当选择图5c的TFT时，该电路可以用于检测电容值，例如如图所示的阴极线和用户的手指之间的电容值。 
已经参考顶部发光有源矩阵OLED结构描述了本发明的实施例，但是也可以应用该技术到例如，类似的PV结构。无疑本领域技术人员将想到许多其他有效的选择。很清楚本发明不局限于描述的实施例且包括对本领域技术人员显而易见在如这里所附的权利要求的精神和范围内的修改。 

Claims (11)

1.一种有源矩阵有机电光装置，该装置具有多个像素且包括衬底，所述衬底承载用于每个所述像素的像素接口电路和所述像素接口电路之上的有机材料，其中，配置所述装置以使得在所述装置的至少一部分区域之上，所述像素接口电路相对于所述像素交错，以使得至少其中一个所述像素下的区域不完全由所述像素接口电路占据，且其中在由所述像素接口电路不完全占据的所述区域中制造用于所述装置的附加电路，
其中，所述附加电路包括提供到一组所述像素的接口的共享的接口电路。
2.根据权利要求1所述的有机电光装置，其中，配置所述装置以使得在所述装置的至少一部分区域之上，所述像素接口电路相对于所述像素交错，以使得一对相邻像素下的区域被所述像素接口电路不完全地占据。
3.根据权利要求1或2所述的有机电光装置，其中，所述附加电路包括至少一个半导体装置。
4.根据权利要求1或2所述的有机电光装置，其中，在显示器的整个区域上每隔规则间隔地设置所述区域。
5.根据权利要求1所述的有机电光装置，其中，所述共享的接口电路包括信号再生电路。
6.根据权利要求1所述的有机电光装置，其中，所述共享的接口电路包括去放大电流镜。
7.根据权利要求1或2所述的有机电光装置，其中，所述附加电路包括选择或者使能电路，用于为与所述附加电路关联的一组像素选择或者使能驱动电路。
8.根据权利要求1或2所述的有机电光装置，其中，所述附加电路包括存储元件。
9.根据权利要求1或2所述的有机电光装置，其中，所述附加电路包括光或者触觉传感器。
10.根据权利要求9所述的有机电光装置，其中，所述装置包括触敏式显示器。
11.根据权利要求1或2所述的有机电光装置，其中，所述装置包括顶部发光有源矩阵OLED结构，其中，所述像素接口电路包括像素驱动电路，且其中所述有机材料包括位于所述像素驱动电路上方的OLED材料，由此所述结构被配置为从顶面发光。
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